不同施肥措施对连作大豆的产量及土壤pH值的影响

Effect of Different Fertilizing on Soybean Yield and Soil pH Value in Continuous Cropping

试验结果表明,大豆长期连作可使白浆土pH值下降,长期施化肥和秸秆还田pH值下降幅度大于不施肥和施有机肥处理;白浆土上施有机肥,连作大豆产量显著高于施化肥,而施化肥高于秸秆还田和不施肥处理。

The research showed that the pH value of Albic soil will reduce in long-term continuous cropping. The decreased range of pH value of applying chemical fertilizer and straw returning to soil were bigger than no fertilization and applying organic fertilizer. The yield of soybean continuous cropping with applying organic fertilizer was significant higher than that with applying chemical fertilizer in Ablic soils, and the chemical fertilizer was higher than straw returning to soil and no fertilization.